DEVICE FOR WATER TAKING FROM TEST- PITS

The device is applied in household water supply, as well as in agriculture. It allows for water taking with high head pressure balancing water system forces. The device consists of a pipe (1), above which are mounted in succession a sucker (2), fixed to a cylinder (4) with a piston (3) and a piston rod (6) positioned into a water-taking column (7). At the lower end of the piston rod (6) right above the piston (3) is positioned a compensation air loop (5), and at the upper end of the piston rod (6) an additional cylinder (8) is mounted, attached to the upper end of the water-rising column (7), which serves for a gasket and the deposition of the water, which is pushed out during the working stroke. At the piston rod free end (6), above the additional cylinder (8), hinged joints (9) are fastened with a crank mechanism (10), one arm of which is connected to a guiding transversal arm (11).